Dell PowerConnect 55xx Systems User Guide 673
FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\Maintenance Projects\Dell
Contax\CxUGQoS.fm
DELL CONFIDENTIAL – PRELIMINARY 9/11/12 - FOR PROOF ONLY
DSCP Rewrite
Use the
DSCP Rewrite
page
to rewrite the DSCP tags for incoming traffic,
when different DSCP values are used in the incoming and outgoing domains.
Changing the DSCP value used in one domain to the DSCP value used in the
other domain preserves the priority of traffic used in the first domain.
As an example, assume that there are three levels of service: Silver, Gold, and
Platinum. The DSCP incoming values used to mark these levels are 10, 20,
and 30 respectively. If this traffic is forwarded to another service provider that
has the same three levels of service, but uses DSCP values 16, 24, and 48, the
values set in the DSCP Rewrite page are used to change the incoming values
to the outgoing values.
These settings are active globally when the system is in QoS Basic mode.
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